Metal-working machine.



E. E WOD.

METAL WORKING MAOHINE APPLIQATIGN funn Nov. 2v, 10o?.

Patented Mar. 23, 1909.

2 SHEETS-SHEET L Patented Mar. 23, 1909A 2 SHEETS-SHEET 2.

W/r/VESSS,

ERWIN E. WOOD, F JACKSON, MICHIGAN.

METAL-WORKING IAOBINE.

Bpeoication ot Letters Patent.

Patented March 23, 1909.

Application ledi November 27, 1907. Serial Nn. 404,131.

To all whom 'it may comern:

Be it humm that I ERWIN E. Woon, o citizen of the United St-ntes,residin at Jackson, county of Jackson, Stute of Michian, have invented ncert-nin new and use# 11 Improvement in Motril-Working Ma.- chines; anddeclare the following to be n full, clear, and exact description of thesame, Such ns will enable others skilled in the nrtto which it pertainsto marke und use the same, reference bein had to the accompanyingdrawings, whic 1 form a port of this specification.

This invention relates to metal working nmchines.

It, hns for its object im rovements adapted to vbe applied to crunk pamers, shaping mnehines, or siniilnr machines in which there is o workholding table that is adjustable vertically ns well :is horizontally,and which has a. reeiprocntin ram that carries the tool employed toproduce resultson work held on the tai-ble.

The improvements relate especially to the means of holdi the ram to itssupport, improvements wiieh relate to the adjust ment of the ram, :undimprovements which relate to the feed.

1n the drsm-'ingsz-Fignre l, is a side elevation partly broken aix-ay.Fig. 2, is a vertical cross-section. F' 3, is o detail showix acrosssection o `one of the rests or tra 's upon which the ram slides. Fig. 4.is a. plan view of the internal clamping device of the ram. Fig. `5, isan end view of the mechanism shown in Fig. '4. .-6, is n side elevationof the mechanism use to produce the horizontal cross-feed of ,the worksupporting trible.` 1 Fig. 's n horizontal tion 'showing in detaily thesame es Fig.' 6. Fig. 8,'is a detail cross-section ofthe vertical`track. Fig. '9, is' a. detail' of the saint;Y x,

device on the crosseed. f 1 "g. f.1f0,;is.n.vert1 en! newlvperto' inSewon, ,showing-the nnisniforverticol snijnstineritof4 the` `Fig.4 111;isV a, `1horizontgsl 'cross j I Whichejnhodies h one-'inw A'improvements m to bring the work into approxinmtion with the tool.

The lnln slides on bearings which nre provided with a substantially flotunder-rest and with side bearin s that incline to the horizontal and nrec oser to euch other :it their bottom lines next adjacent to the Hutbearin than they are further up, widening grnduo. from below upward. Thenim is providedy with ben-ring faces that correspond to the flat andinclined surfaces just nientioned, and the ram is held in place by nuinclined or wedge sho d gib that rests over its inclined upper sur nee,und this inclined ib is pressed inward against a. bearing which orms artof' the frame, and is on extension of the si( e walls in which theinclined surfe/ees previously mentioned are formed, the eide walls andthe over-hanging part of the same made as an integral casting, therebyinsuring great strength and stability, to this pin-t of the framework.The engaging inclined surfaces of the ram andthe frame, und of the remand the gib over its bca-ring port insure n constant engagement of theram and the guide in which it travels, which becomesA even more closeand intimate with wear, und is n ot thrownout of nd'ustment :is nresultof its constant sind hml use.

'The-ram itself islarge and heavy, and is of ,Y 4

ram, which has its upper surface broken b vo lo slot necessary t0 permitof binding the positioning nut tothe rfi-rn.A .y In the shapeo p the ramformingfpart of this invention, this long slot s{obv1at ed,' astheldevice for binding the ram to the 4adjuetin lnntis 'conta-ined "entirelyvithinth'e fem', en. is acuefedbye 'Stem 8. `SIllitll' :'V arm'g.- in':the i rainond. does notfmnteriolly 510.65 Mechanism isffprovidedvtoiprodnce e com` inward horizontally from each side of the A ribspni'cctinghonzontall l side wells' of vthe ter wheel 5. n the shaft withthe master wheel is an cecentrically mounted pinion 6, which meshes withn second eccentricelly mounted pinion 7, on hub I0. The master wheel undthe pinions 6 and 7 nrc nclosed within the housing. The mnsterwheelandthe pinion 6, which are secured tovcther on the sinne shaft S, areintermediate Pbetween the main driving wheel 2 and the pinion 7, whichlatter pinion is secured to a plate 9, which terminates the inner end ofthc hub 10, which constitutes the shnft of pinion 7, and the face plate9, which lies inside the pinion 7, but is secured to it. Across the faceof the plate 9 extends a screw 1l, one end of which is journaled in abearing l2, that projects from the face of the plate 9, the other endpasses through n running nut 13 that carries a. stud 14. und upon thestud is ivoted a. slide l5, that travels in a. slot in t e driving arm16. The lower end of the driving arm 16 is connected by n link 17 to abearing 1S in the housing. The nut 13 ma be adjusted along the screw 1lby turning t e screwinits bearing, which turning movement is effected bymeans of ahand driven pinion 20 onthe end of a. shaft 2 l thatrojectscentrally on the hub l 0 and is novide external to the lions withn wrench hold 22. The pinion 20 Ines es with pinion 23, carried on nstud which pro'ects from the face plateand on the same stu is u mit ergear 2.4,which meshes with miter gear 25, concentric with the axis ofthe screw 11. The screw 11 turned by means 0f the sha-ft 21 adjustst-heslide 14 along the slot,varying its eccentric-ity with respect to thecenter of the hub 1 O, and consequently varying the scope of oscillationof the driving arm 16. The driving arm 16, is pivoted indirect-ly to theram 26 b v a cone pivot 27. The indirect connection between the arm 16and the rom 26 is shown in Figs. l, 2, 4, and 5. It consists of the nut28 which hns suitable grooves in each side to iit thebands or ribs shownprojecting ram. On the back end this nut 28 has the top cut. away so asto bear onl;r on the bottom of the bands or ribs on the ram, and so asto leave the upper half 0f screw 38 exposed. Where the upper part of nut38 is eut away, the clamping plate .30 is attached; Tlus clamping plate30 carries a pair of pinions 31 and 32, which engave on oplpositesidcsoan. rack 33 that is itsel? sliding yseellredto ram 26. Each of thepinionsl and 32;;is n" the end of a screw which engages through plate 30and the nui; 28, `und eachfpinion serves asenut to conct, with'thescrew-1l upon which-it is inountedtoela'lnp thetwo' A shell of the ramby means of o, key post 35, having,r un external wrench hohl terminal 36und nn internal pinion terminal 37, which engages with the ruck 33.Plate 30 is so nrrnnged that it clamps on the rann .26 and upon thescrew 38 nt saine time, thus fastening the mln very securely to thedriving urln 16.

In the normal action of the rem, the rock travels with the rfnn, but ifitbe desired to adjust the point of connection between the .n.rm 16 ondthe ram, it is done by turning the long screw 38, which passes throughthe nut 28, and then clamping the nut to the rain by turning the shaft35. The long screw 38 is turned on its own axis by n. mit-er gear consonection between itself and the vertical key post 40, whose protrudin endis provided with a wrench hold, the icy post 40 being provided with a.miter gen1' 41, which meshes with a, miter gear 42 on the head of thelong S5 screw 38.

The adjustments just described make it possible to very the throw of theram, und make it possible to vary the point of attach nient between theoscillating arm and the ram and thereby vary the points of change ofmovement or the dead point of oscillation of the ram, and this is allaccomplished by mechanism that is entirely Within the housing either ofthe base or of the ram, and is reached by means of small key posts whichproject through from the interior mechanism to the exterior thereof.

The front end of the ram carries s. tool head 95 which can he swivcledabout its axis und clam )ed to the ram at any desired angle, This toolend carries a slide 52, which con be Y adjusted verticali 015 Yhe toolhead bv means of screw 43 and en wheel44. This slide 4carries theclnpper boi: 94 and the ltoolpost `105 93. The clapper box 94 ispivotedtothe slide 52 and has an erchedslot- 54 in its upper end, h which aclamp screw engages with the slide so as to swivel the cinp r box aboutits pivotandclmnp it at an cnl); To provide for relieving the cuttin tooon the return stroke of the ram, the c opper block 96, which carriestool post 493, is pllotally connected to the clapper box 94.` e sidewalls of the clapper box nre connected at the 11 lower .end rib or-bri`97, vwhic'sh'i'snn improvement V'einer the'usue form .and greatlyincreases fthe sind rigidity. 1

S114. mounted bnfthe housing i Ta'. Petifi iS'fPrQvided @with en* snide"engsgesin-fhsletinlewr `duces'the feed ol' the tool, the amount -oiwhich feed is determined by the position of tappet 4H on slide rail 49.By the use of slotted lever 5() an improvement 1s made over the usualform where a s )ring or weight is used to return the ratchet lever toits initial iositioii, for the slotted lever works positiveiy in bothdirections. At any time when it may be desirable to use the instrumentwithout vri-tical feed of the tool, the tappi-t 48 is inovcd t'o aposition where it will not engage thi` ratchet lever 5U, and this 'feedis thrown out of use.

Thc'cioss feed of the table T, is produced by means of a long screw 55,that engages a nut .36 which pro ;ccts as a bracket from the table 'l`.The screw is actuated by a wheel and pinipn connection shown in Figs. 6and 7, and a connection which reaches from the axis of the hub 8.Secured in the end of the huh 8 is the shaft 56, which carries on itsouter end, but within a secondary housing oi' cap a mitcil gear 58,which meshes with a miteil 'gear 59, which is on a shaft that vprojectsthrough thc side ofthe secondary housing 57, and caliies a second niiteigear 60, which meshes with mit-er gear 6l on a shaft which carries acrank arm 63, and the crank is conl ccted by link 64 tolever 98 which ison sha'lt Q9 carried in brackets 63. On the other end of the shaft 99 isfastened the rock-arm 67. InA rock-arm 67 is an adlustingiscrew 68 and atrunnion nut 69. On nut 69 is'pivotcd one end of oscillating link 66, ofwhich the other end is pivoted to ratchet lever 70. Ratchet lever 7Ucarries a yreversible pawl 71 which engages an idler wheel 72, whichmeshes with the pinion 73 on the end of the screw 55.- Each revolutionof the main driving wheel produces an oscillation of the rock-arm 67,

V and actuates the screw 55, the amount of the duce the cross feed ofthe table T return stroke of ram',

actuation being determined by the position. of the adjustment ofthetrunnion nut 69, on thi` rock lever 67; the adjustmentcan be changedat' will while the device is moving. The connection between hub 8 andcrank arin 63 being made by means of miter gears 58, 59, 60, 61, and theshaft 100, is an irnprovcment over the usual form of connection asfollows: Housing 57 is free to swivel on sha1` t 56 and accommodateitself to the posi tion of shaft l- Miter 60 is-ke ed to shaft 100, butis free to slide upon sha t 100 to accommodate the varying distancebetween bracket 63 a and hub 8, as the table is raised or lowered uponits vertical track on the front of main column 1. With this arrangementas shown in Figs. 6 and 7, the table canhe raised ,or lowered when themachine is standingr still, without turning the screw 55. Also after therock-arm 67 has been'set in such relation to main driving wheel 5 as toproduring the the table can he raised or lowered without disturbing theadjustnient Ailictwe'en rock ,arm 67 und niastt, wheel 5. 4

The connetion of pinion 73 with screw 55 is rovided with a safetj,rdevice which eiiab es the pinion 73 to slip on the shaft o'f the screw55 if the table has traveled so far over that the screw cannot beturned. 'l'hc safety device consists of a clutch cap 76,4 l engages thehub of the pinion 73 with a saw `toothed clutch. The cap 76 is adaptedto slip over the toothed clutch portion if the strain on the pinion 73is sufficient 1o compress the spring 78; the cap is keyed to the shaftand rotates with it, )ut is capable of longitudinal movement asdescribed.

For preliminary movement of the table -across the face of the machine,the projecting end of the screw 55 is provided with a wrench hold 74, bmeans of which it mav be turned inanualy. Thel entire table T may beadjusted vertically by means `of screw 90 which engages through nut 91,on the vertically sliding part 92 of the table; the 'shaft 93 of theidler 72 and the bearings of screw 55 are carried by the verticalsliding part 92.

An .important im rovement is found in the. means provided for holdingthe ram firmly on the top of the pillar, while still allowing ittoreciprocate, and the means provided for holding the vertically slidingart of the table firmly to the front of the pillar and still allow it totravel verticallyv thereon.

To accomplish the result in connecting the ram with the pillar the sidewalls of the housing are carried up integral-,- and eae'h side wall isrovided with a channel 77, the bottom ace of which is horizontal, andthe more nearly vertical face of .which isv inclined with the top of theinclined surface more distant from the vertical axis of the pillar thanis the bottom ofthe inclined surface. The inclined surface is parallelwith the longitudinal axis of the ram. The overhanging part 78 isfinished with an under surface `that is substany tially horizontal. Thatpart of the ram w ie e ges against the under horizontal surface g thechannel is plane, and when the ram is inplace is also horizontal. Thatface of ther m which engages against the in clined s ace isorrespondingly inclined, making the distance across the ram greater atlthe top of this inclined face than is the distance across the ram atanv other part. The upper surface of the rib-like projection on whichthese surfaces of the rain r are formed, is inclined with the inner edgeof the incline hiher than the outer edge and the vertical staneethroughthis rib-like projecton 79 is somewhat less than the verticalA distancebetween the under and up er surfaces of the channel.

the rib-like 4projection and the u per surface 0f the channelis filledwith a ong wedgeshapedg'ib 80, crowded into place b r screws E fi lll(lThe space ietween #i whichiaref driven horizontall f from tliei` outersurface of the housing and a ut againsti theedge of the wedge shaped ib80;"thc gib itself is held from longitu mal mov-emont by stop pins B2.The shape given. t0 tinI way or track thus produced, and the rib whichforms a runner on the track, tends to cause the wear incident to the uscof the machine to produce an even more accurate Iii and engagementbetween thc parts than hat which is produced in thc originalconstruction of them, and this part of the machine continues selviceableafter long use.

The'intcgral metal foi-'m of the track surrounding the channel, in whichthe runner recprocates, makes the structure exceedin ly strong andunyiclding and durable.

T e similar vertical bearing is shown in Fig.

8. The vertical rib 179 engages in the ver-` tical groove 17'?y in frontof gib 180, and this latter is held in place by draw screw v181;

this is held in place by holding screw 182,

What I claim is 1. In a machine of the class specified, in combinationwith a pillar provided with -complementary channels for the engageh-n'er channls,.each having oblique side walls ment tHereinof the runnerof a ram, eac being constituted by an integral portion of the body ofthe pillar having a substantially horizontal resting surface, aninwardly in, clined guiding surface, and en overhan g part adapted toretain the runner in pace, a ram membe provided with runners ofcomplementary contour tosaid channels, adapted to engage therein, wedgeshaped gib members engaging between the overhanging parts and the uppersurfacesof the runner, and adjustable stop members, whereby the' gibmembers may bercausedto enga e as closely against the'bearin surfaces othe runner as is consistent wit the unim eded slide thereof along saidchannels, su stantially as described.l

2. In a machine of the class s eciedf'in combination with a ram provide'wit'hrun-IV jiaosis ners, a ost provided at its summit with runner cannals of complementary contouil there being integral arts of said postadjacent to t e channe portions adapted to overhang the runner portionsof saldram, and adjustable means ada ted'to engage betweaii the runnersand said)overhang1ng portions for holding the runners closely thoughslidably against the supporting bottom portions ol' said channels,substantially as described.

'3. In a machine ofthe class described, in combination with a postprovided with channels having sides slanting inwardly from the toptoward the t bottom and overhangin parts integral with saidv post, a ramprovided with runners adapted to engage in saidohannels being ofcomplementary contour there with, a wedge. 'shaped gib, and means forforcing the wedge shaped gib'into close enagement with said runners andagainst the upper side, thereof,` substantially as de scribed. 5 i A 4.In a machine of the class described, in Acombination with a-supportingposty having its top portion ashionedrlinto parallel ruw engage betweensaid overhan ng parts and and integral parts of the post overhanging theadjacent runner portion o 4the traveling member, and means engagingtransversely of the possible path'n of travel of said traveling member`for regulatingA the degree of pressure-on the runners exertedthereby, sub- A stantially as described.r

In testimony whereof, I 'signthisvgspecifi-iv y cation in the presenceof twowitnesses.V l A `ERVVIN E. WOOD.

Witnesses WALTER S` Winsen,

M. ELIZABETH HAMMOND.

